Legal Question in Personal Injury in California

Yup. Equally or even more likely is you get into an accident and injure a stranger. Either way, if you are at fault, they can sue the owner of the car for everything they own. That's why your parents should carry adequate insurance on any vehicle you drive.

They won't get "everything they own." Most people who get hurt in auto accidents don't get hurt badly enough to exhaust the responsible party's insurance, and the liability of a vehicle owner is limited by law.

Yes. The driver and all registered owners are liable for the damages the driver causes. If an owner allows an unlicensed or impaired driver to drive the car, there is no 'cap' on liability.